06 Dec Name: __________ _________________________ CHEM 1212 Module 15 Reading Guide
Name: __________ _________________________
CHEM 1212 Module 15 Reading Guide
Nuclear Processes
Nuclear reactions, unlike ordinary chemical reactions, usually change one element into one or more other ___________. This process is called ___________. The energy produced in nuclear reactions is much ___________than that involved in any chemical reaction. Unlike ordinary chemical reactions, in nuclear reactions the total quantity of matter is typically changed and different isotopes of an element exhibit ___________behaviors. Radioactive isotopes have ___________chemical properties as the nonradioactive isotopes of the same element.
The spontaneous change of an unstable nuclide into another is ___________decay. Atoms undergo radioactive decay to become more ___________. The unstable nuclide is called the ___________nuclide; the nuclide that results from the decay is known as the daughter nuclide. The daughter nuclide may be stable, or it may ___________itself. There is no known way to control natural radioactive decay. It cannot be sped up, slowed down, or ___________.
A nuclear equation must be balanced in both mass and nuclear ___________. Different types of particles can be emitted or captured during radioactive decay.
|
Particle |
Symbols |
A (mass) |
Z (nuclear charge) |
Identity |
|
Alpha |
|
4 |
2 |
Helium nucleus |
|
Beta |
|
0 |
−1 |
Electron |
|
Positron |
|
0 |
1 |
Positron |
|
Gamma |
|
0 |
0 |
Photon of high-energy electromagnetic radiation |
|
Proton |
|
1 |
1 |
Hydrogen nucleus, hydrogen ion, proton |
|
Neutrons |
|
1 |
0 |
neutron |
Alpha decay is the emission of an alpha particle from the nucleus. Alpha decay occurs primarily in heavy nuclei (A > 200, Z > 83) and leaves a daughter nuclide with a larger n:p ratio than the parent nuclide.
Beta decay is the emission of an ___________from a nucleus. Emission of an electron does not change the mass number of the nuclide but does ___________the number of its protons and decrease the number of its neutrons. Beta decay is observed in nuclides with a large n:p ratio which decreases.
Gamma emission is observed when a nuclide is formed in an excited state and then decays to its ___________state with the emission of a γ ray. There is no change in mass number or ___________number.
Positron emission is the emission of a positron from the nucleus in which the n:p ratio is low. The n:p ratio increases with positron emission.
Electron capture occurs when an inner shell __________
Our website has a team of professional writers who can help you write any of your homework. They will write your papers from scratch. We also have a team of editors just to make sure all papers are of HIGH QUALITY & PLAGIARISM FREE. To make an Order you only need to click Ask A Question and we will direct you to our Order Page at WriteDemy. Then fill Our Order Form with all your assignment instructions. Select your deadline and pay for your paper. You will get it few hours before your set deadline.
Fill in all the assignment paper details that are required in the order form with the standard information being the page count, deadline, academic level and type of paper. It is advisable to have this information at hand so that you can quickly fill in the necessary information needed in the form for the essay writer to be immediately assigned to your writing project. Make payment for the custom essay order to enable us to assign a suitable writer to your order. Payments are made through Paypal on a secured billing page. Finally, sit back and relax.
About Wridemy
We are a professional paper writing website. If you have searched a question and bumped into our website just know you are in the right place to get help in your coursework. We offer HIGH QUALITY & PLAGIARISM FREE Papers.
How It Works
To make an Order you only need to click on “Order Now” and we will direct you to our Order Page. Fill Our Order Form with all your assignment instructions. Select your deadline and pay for your paper. You will get it few hours before your set deadline.
Are there Discounts?
All new clients are eligible for 20% off in their first Order. Our payment method is safe and secure.